Add Listen, Must, PipeListener, and T

1 files changed, 9 insertions, 0 deletions

diff --git a/util.go b/util.go
new file mode 100644
index 0000000..34cf28b
--- /dev/null
+++ b/util.go
@@ -0,0 +1,9 @@
+package core
+
+// Must panics if err is not nil. It returns val otherwise.
+func Must[T any](val T, err error) T {
+	if err != nil {
+		panic(err)
+	}
+	return val
+}